JPH10166882A - Operation lever for tractor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operation lever from interfering with work by forming a lever guide surface recessed along a forward and backward direction in a fender operation seat side covering a rear wheel, setting a grip part in a lever guide hole to be lower than a fender upper edge and guiding rotation back and forth. SOLUTION: The lever guide surfaces 4L and 4R of left and right fenders 2L and 2R are formed by recessing bending parts bent in fallen J shapes to cover the connecting part upper side to the upper peripheral surface of a floor panel 11 inside rear wheels, lever guide holes 5A, 5B, 5C and 4D of forward and backward directions are formed along the inner side faces of the lever guide surfaces 4L and 4R, a sub-transmission lever is passed through the lever hole 5A, a PTO lever is passed through 5B, a position lever through 5C and an automatic lever through 5D and thereby and operation is guided. The grip of the operation lever is not protruded greatly from fender upper edges 7L and 7R upward and thus does not interfere with work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation lever for a tractor. It is to prevent it from hanging.

[0002]

In a tractor, a main shift lever, an auxiliary shift lever, a position lever, and a PT.
In many cases, many operation levers such as O levers are arranged between the fenders on the side of the cockpit, and if the tip grip portions of these operation levers protrude greatly from the upper surface of the fender, fruit trees in an orchard are reduced. When working underneath, if the hanging branches and leaves come into contact with the fender surface, they are likely to get caught on this operating lever and get in the way.

[0003]

According to the present invention, a lever guide surface 4 which is recessed along the front-rear direction is formed on the cockpit 3 side of a fender 2 which covers a rear wheel 1, and the lever guide surface 4 is provided with a lever. The guide hole 5 has a configuration of an operation lever of a tractor in which an operation lever 8 whose grip 6 is set lower than the upper edge 7 of the fender 2 is guided to rotate back and forth.

[0004]

When the operation is performed while the tractor is running, the operation lever 8 is moved to the lever guide surface 4 of the fender 2.
Is operated to rotate back and forth along the axis. At this time, the grip 6 of the operating lever 8 does not protrude upward from the upper edge 7 of the fender, so that it does not become a hindrance. In particular, branches and leaves hang down and contact the upper edge 7 of the fender 2 as in an orchard. Even when easy, the grip 6 is less protruding and less likely to be caught or entangled. Also in the configuration, since the lever guide surface 4 is formed by forming a recess in the fender 2 to shorten the operation lever 8, it is simple and easy.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor includes a front wheel 10 which can be steered by a steering handle 9 and a rear wheel 1.
In a four-wheel running mode in which the vehicle is driven by an engine mounted below the front hood 12, a fender 2 is provided over the upper left and right rear wheels 1, and the left and right fenders 2 are connected by a floor panel 11. , Mounted on the upper part of the car body. 13 is a safety frame. A lower link 14 is moved up and down by a lift arm at the rear of the vehicle body, constitutes a part of a three-point link mechanism, and can mount various working machines at the rear.

Since the fenders 2 are arranged on both left and right sides of the cockpit 3, there are a left fender 2L corresponding to the left hand side of the operator and a right fender 2R corresponding to the right hand side. The left lever guide surface 4L, the right lever guide surface 4R, the left fender upper edge 7L, the right fender upper edge 7R, and the operation lever 8 includes an auxiliary transmission lever 8A, a PTO lever 8B, a position lever 8C, and There is an automatic lever 8D for turning on and off the plowing depth control. The auxiliary transmission lever 8A, the PTO lever 8B, and the like are disposed on the lever guide surface 4L of the left fender 2L, and the position lever 8C
The automatic lever 8D and the like are disposed on the lever guide surface 4R of the right fender 2R.

The auxiliary transmission lever 8A is connected to the transmission case 1
The shift clutch of the sub-shift gear in 5 is turned on and off, and the shift position is switched to a high speed side by rotating back and forth. In the auxiliary transmission lever 8A shown in FIG. 3, the grip portion 6A protrudes from the upper surface of the fender 2 when the tractor is stopped, but is located below the upper surface of the fender 2 when starting the tractor by performing a gear shift. It has a configuration. The PTO lever 8B switches the PTO transmission gear in the transmission case 15, and switches the transmission position of the PTO shaft to high or low by rotating back and forth. The position lever 8C is for raising and lowering the working machine lifted and lowered by the lift arm. The automatic lever 8D is used to set the working depth control position of a working machine, for example, a rotary working depth device, to be maintained at a fixed position.

A main transmission lever 16 for operating the transmission clutch of the main transmission gear in the transmission case 15
Is provided on the floor panel 11 on the left side of the cockpit 3, and the grip 17 is disposed at a central position on the front side of the cockpit 3.
The main transmission lever 16 has a middle portion made detachable by a connecting flange 18. In order to make the grip 17 portion of the main shift lever 16 project directly upward to facilitate the operation, the main shift lever 16 can be replaced with an upright main shift lever.

[0009] Also, the auxiliary transmission lever 8A and the PTO lever 8B
Can be attached and detached with the connecting flanges 19 and 20, and the grip 6
The configuration can be switched to a mode in which the A and 6B portions protrude upward from the fender upper edge 7L. Reference numeral 21 denotes a lever shaft of the sub transmission lever 8A and the PTO lever 8B, 22 denotes a lever shaft of the main transmission lever 16, and 26 denotes a position lever.
C is a lever shaft of the auto lever 8D. Reference numeral 23 denotes a fender handle, which is gripped by a driver when getting on and off, and is provided on the fender upper edges 7L and 7R along the front-rear direction. Reference numeral 24 denotes a turn signal lamp attached to the rear end of the fender handle 23.

The lever guide surfaces 4L, 4R of the left and right fenders 2L, 2R are connected to the floor panel 11 inside the rear wheel 1.
A curved portion having a form of being bent in an inverted J-shape to cover over the upper peripheral surface of the rear wheel 1 from above the connecting portion is recessed, and extends in the front-rear direction along the inner ends of the lever guide surfaces 4L and 4R. Lever guide holes 5A, 5B, 5C, and 5D are formed, the auxiliary speed change lever 8A is passed through these lever guide holes 5A, a PTO lever 8B is provided for 5B, a position lever 8C is provided for 5C, and an auto In this configuration, operation guides are provided through the levers 8D. The main transmission lever 16 is guided by being fitted into a lever guide hole 25 of the floor panel 11.

Each of the operation levers 8 is provided with a spherical grip 6 at a distal end thereof to facilitate gripping. The distal end surface of the grip 6 is set lower than the fender upper edge 7 in a side view. Alternatively, even if it protrudes above the fender upper edge 7, the amount of protrusion is set to about half of the grip 6 part. Further, the lever guide surfaces 4L, 4R formed on the fenders 2L, 2R may be integrally formed as a whole fender. However, a notch or a punched hole is formed in the fender, and the notch or the punch is formed. A configuration in which the fender portions formed with the lever guide surfaces 4L and 4R depressed in the holes may be fitted and detached.

[Brief description of the drawings]

FIG. 1 is a side view of a tractor.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view of an operation lever unit.

FIG. 4 is a plan view of a fender unit.

FIG. 5 is a right side view thereof.

FIG. 6 is a left side view thereof.

FIG. 7 is a front view thereof.

[Explanation of symbols]

 Reference Signs List 1 rear wheel 2 fender 3 cockpit 4 lever guide surface 5 lever guide hole 6 grip 7 upper edge 8 operation lever

Claims (1)

[Claims] 1. A lever guide surface (4) recessed along the front-rear direction is formed on the cockpit (3) side of a fender (2) covering a rear wheel (1), and a lever guide hole (5) of the lever guide surface (4) is formed in the lever guide hole (5).
An operation lever of a tractor in which an operation lever 8 set with the grip 6 at a position lower than the upper edge 7 of the fender 2 is guided to rotate back and forth.